X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/4fb0e8720c19451a3d60acba7f033aa237c7f468..4fa17df57de29e2b91c552c1b012f3f198dfaa2f:/IkiWiki/Plugin/sparkline.pm

diff --git a/IkiWiki/Plugin/sparkline.pm b/IkiWiki/Plugin/sparkline.pm
index c1f016ffd..fb4849492 100644
--- a/IkiWiki/Plugin/sparkline.pm
+++ b/IkiWiki/Plugin/sparkline.pm
@@ -149,7 +149,7 @@ sub preprocess (@) {
 
 		waitpid $pid, 0;
 		$SIG{PIPE}="DEFAULT";
-		if ($sigpipe) {
+		if ($sigpipe || ! defined $png) {
 			error gettext("failed to run php");
 		}